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In this work, we introduce a degenerating PDE system with a time-depending domain for complete damage processes under time-varying Dirichlet boundary conditions. The evolution of the system is described by a doubly nonlinear differential…

偏微分方程分析 · 数学 2015-02-20 Christian Heinemann , Christiane Kraus

In this paper we investigate the existence of solutions and their weak-strong uniqueness property for a PDE system modelling damage in viscoelastic materials. In fact, we address two solution concepts, weak and strong solutions. For the…

偏微分方程分析 · 数学 2024-09-04 Robert Lasarzik , Elisabetta Rocca , Riccarda Rossi

In this paper we address the analytical investigation of a model for adhesive contact, which includes nonlocal sources of damage on the contact surface, such as the elongation. The resulting PDE system features various nonlinearities…

偏微分方程分析 · 数学 2017-04-04 Elena Bonetti , Giovanna Bonfanti , Riccarda Rossi

In this work, we consider the interaction of a 3D incompressible fluid with a 2D flexible shell that occupies (a part of) the boundary of the fluid domain. We assume that the shell is perfectly elastic while the fluid is governed by the…

偏微分方程分析 · 数学 2026-05-15 Dominic Breit , Prince Romeo Mensah , Sebastian Schwarzacher , Pei Su

In this paper we prove existence of global in time weak solutions for a highly nonlinear PDE system arising in the context of damage phenomena in thermoviscoelastic materials. The main novelty of the present contribution with respect to the…

偏微分方程分析 · 数学 2016-01-20 Christian Heinemann , Elisabetta Rocca

We analyze nonlinear degenerate coupled PDE-PDE and PDE-ODE systems that arise, for example, in the modelling of biofilm growth. One of the equations, describing the evolution of a biomass density, exhibits degenerate and singular…

偏微分方程分析 · 数学 2023-04-04 Koondanibha Mitra , Stefanie Sonner

We analyse a PDE system modelling poromechanical processes (formulated in mixed form using the solid deformation, fluid pressure, and total pressure) interacting with diffusing and reacting solutes in the medium. We investigate the…

We consider a state-of-the-art ferroelectric phase-field model arising from the engineering area in recent years, which is mathematically formulated as a coupled elliptic-parabolic differential system. We utilize a fixed point theorem based…

偏微分方程分析 · 数学 2022-05-12 Yongming Luo

We prove the well-posedness results, i.e. existence, uniqueness, and stability, of the solutions to a class of nonlocal fully nonlinear parabolic partial differential equations (PDEs), where there is an external time parameter $t$ on top of…

偏微分方程分析 · 数学 2021-10-11 Qian Lei , Chi Seng Pun

The motion of an elastic solid inside of an incompressible viscous fluid is ubiquitous in nature. Mathematically, such motion is described by a PDE system that couples the parabolic and hyperbolic phases, the latter inducing a loss of…

偏微分方程分析 · 数学 2009-11-10 Daniel Coutand , Steve Shkoller

The paper presents a detailed analysis and extended formulation of a rate-independent regularized damage model proposed by Mielke and Roub\'i\v{c}ek (2006). Localization properties are studied in the context of a simple one-dimensional…

材料科学 · 物理学 2015-07-23 Milan Jirásek , Jan Zeman

In this paper, we consider the local existence and uniqueness result for the inhomogeneous Prandtl equations in dimension two by energy method. First of all, for the homogeneous case, the local-in-time well-posedness theory of unsteady…

偏微分方程分析 · 数学 2024-03-19 Jincheng Gao , Lianyun Peng , Zheng-an Yao

In this paper we analyze a PDE system modelling (non-isothermal) phase transitions and damage phenomena in thermoviscoelastic materials. The model is thermodynamically consistent: in particular, no {\em small perturbation assumption} is…

偏微分方程分析 · 数学 2014-11-20 Elisabetta Rocca , Riccarda Rossi

In this paper, we consider a contact problem with adhesion between a viscoelastic body and a rigid support, taking thermal effects into account. The PDE system we deal with is derived within the modelling approach proposed by M. Fremond…

偏微分方程分析 · 数学 2015-05-14 Elena Bonetti , Giovanna Bonfanti , Riccarda Rossi

We study a one-dimensional parabolic PDE with degenerate diffusion and non-Lipschitz nonlinearity involving the derivative. This evolution equation arises when searching radially symmetric solutions of a chemotaxis model of…

偏微分方程分析 · 数学 2014-02-04 Alexandre Montaru

Local well-posedness is established for a highly nonlocal nonlinear diffusion-adhesion system for bounded initial values with small support. Macroscopic systems of this kind were previously obtained by the authors through upscaling in [32]…

偏微分方程分析 · 数学 2025-05-16 Mabel Lizzy Rajendran , Anna Zhigun

We review the concept of well-posedness in the context of evolutionary problems from mathematical physics for a particular subclass of problems from elasticity theory. The complexity of physical phenomena appears as encoded in so called…

偏微分方程分析 · 数学 2016-10-27 Rainer Picard , Sascha Trostorff , Marcus Waurick

In this paper we study a model for phase separation and damage in thermoviscoelastic materials. The main novelty of the paper consists in the fact that, in contrast with previous works in the literature (cf., e.g., [C. Heinemann, C. Kraus:…

偏微分方程分析 · 数学 2015-10-14 C. Heinemann , C. Kraus , E. Rocca , R. Rossi

Stiffness degradation and progressive failure of composite laminates are complex processes involving evolution and multi-mode interactions among fiber fractures, intra-ply matrix cracks and inter-ply delaminations. This paper presents a…

数值分析 · 数学 2023-11-06 Jiakun Liu , Stuart Leigh Phoenix

We investigate a PDE-constrained optimization problem, with an intuitive interpretation in terms of the design of robust membranes made out of an arbitrary number of different materials. We prove existence and uniqueness of solutions for…

偏微分方程分析 · 数学 2018-01-30 Behrouz Emamizadeh , Amin Farjudian , Yichen Liu , Monica Marras
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